Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong hieu ca snippets" » "dong hieu ca snippets", "cong dieu ca snippets", "long hieu ca snippets", "cong hieu cac snippets", "cong hieu cua snippets", "cong hieu va snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cong hieu ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hieu ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong hieu ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hieu ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.